Boston, MA

2:33 PM EDT on September 18, 2019 (GMT -0400)
Logan International

Weather History for KBOS - August, 2019

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Tuesday, August 20, 2019

  Actual Average Record
Temperature  
Mean Temperature 78 °F 72 °F  
Max Temperature 84 °F 79 °F 98 °F (1937)
Min Temperature 71 °F 64 °F 52 °F (1905)
Degree Days  
Heating Degree Days 0 0  
Month to date heating degree days 0 0  
Since 1 June heating degree days 21 61  
Since 1 July heating degree days 0 6  
Cooling Degree Days 13 7  
Month to date cooling degree days 205 160  
Year to date cooling degree days 793 592  
Since 1 June cooling degree days 764 562  
Growing Degree Days 28 (Base 50)    
Moisture  
Dew Point 62 °F    
Average Humidity 60    
Maximum Humidity 74    
Minimum Humidity 45    
Precipitation  
Precipitation 0.00 in 0.10 in 2.10 in (1894)
Month to date precipitation 2.45 2.26  
Year to date precipitation 33.30 27.53  
Sea Level Pressure  
Sea Level Pressure 30.04 in    
Wind  
Wind Speed 8 mph (NE)    
Max Wind Speed 15 mph    
Max Gust Speed 18 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

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Astronomy

Aug. 20, 2019 Rise Set
Actual Time 5:56 AM EDT 7:37 PM EDT
Civil Twilight 5:26 AM EDT 8:07 PM EDT
Nautical Twilight 4:50 AM EDT 8:43 PM EDT
Astronomical Twilight 4:11 AM EDT 9:22 PM EDT
Moon 10:19 PM EDT (8/20) 10:36 AM EDT (8/20)
Length of Visible Light 14h 41m
Length of Day
13h 41m
Waning Gibbous, 78% of the Moon is Illuminated
Aug 20
Waning Gibbous
Aug 23
Last Quarter
Aug 30
New
Sep 5
First Quarter
Sep 14
Full

Hourly Weather History & Observations

Time (EDT) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:54 AM 77.0 °F - 68.0 °F 74% 29.96 in 10.0 mi WNW 10.4 mph - N/A   Scattered Clouds
1:54 AM 77.0 °F - 66.9 °F 71% 29.97 in 10.0 mi West 6.9 mph - N/A   Scattered Clouds
2:54 AM 78.1 °F - 66.0 °F 66% 29.99 in 10.0 mi West 6.9 mph - N/A   Clear
3:54 AM 77.0 °F - 64.0 °F 64% 30.00 in 10.0 mi West 5.8 mph - N/A   Scattered Clouds
4:54 AM 75.9 °F - 61.0 °F 60% 30.01 in 10.0 mi WNW 5.8 mph - N/A   Partly Cloudy
5:54 AM 75.0 °F - 60.1 °F 60% 30.03 in 10.0 mi WNW 6.9 mph - N/A   Partly Cloudy
6:54 AM 75.9 °F - 60.1 °F 58% 30.05 in 10.0 mi WNW 8.1 mph - N/A   Partly Cloudy
7:54 AM 78.1 °F - 57.9 °F 50% 30.06 in 10.0 mi WNW 11.5 mph - N/A   Partly Cloudy
8:54 AM 80.1 °F 80.6 °F 57.9 °F 47% 30.07 in 10.0 mi NW 10.4 mph - N/A   Partly Cloudy
9:54 AM 82.0 °F 82.1 °F 59.0 °F 45% 30.08 in 10.0 mi North 5.8 mph - N/A   Partly Cloudy
10:54 AM 82.0 °F 82.1 °F 59.0 °F 45% 30.07 in 10.0 mi Variable 3.5 mph - N/A   Partly Cloudy
11:54 AM 82.0 °F 82.7 °F 61.0 °F 49% 30.07 in 10.0 mi ESE 8.1 mph - N/A   Partly Cloudy
12:54 PM 82.9 °F 83.3 °F 61.0 °F 47% 30.06 in 10.0 mi SE 10.4 mph - N/A   Partly Cloudy
1:54 PM 82.9 °F 82.8 °F 59.0 °F 44% 30.05 in 10.0 mi ESE 12.7 mph - N/A   Partly Cloudy
2:54 PM 82.0 °F 82.7 °F 61.0 °F 49% 30.05 in 10.0 mi East 10.4 mph - N/A   Scattered Clouds
3:54 PM 80.1 °F 81.1 °F 61.0 °F 52% 30.05 in 10.0 mi East 13.8 mph - N/A   Scattered Clouds
4:54 PM 79.0 °F - 60.1 °F 52% 30.05 in 10.0 mi East 13.8 mph - N/A   Scattered Clouds
5:54 PM 77.0 °F - 62.1 °F 60% 30.04 in 10.0 mi East 11.5 mph - N/A   Mostly Cloudy
6:54 PM 73.0 °F - 64.0 °F 73% 30.04 in 10.0 mi ENE 8.1 mph - N/A   Mostly Cloudy
7:54 PM 73.9 °F - 62.1 °F 66% 30.03 in 10.0 mi ENE 3.5 mph - N/A   Scattered Clouds
8:54 PM 72.0 °F - 63.0 °F 73% 30.04 in 10.0 mi East 3.5 mph - N/A   Partly Cloudy
9:54 PM 72.0 °F - 63.0 °F 73% 30.04 in 10.0 mi Variable 3.5 mph - N/A   Scattered Clouds
10:54 PM 73.0 °F - 63.0 °F 71% 30.04 in 10.0 mi SSW 5.8 mph - N/A   Mostly Cloudy
11:54 PM 73.0 °F - 63.0 °F 71% 30.04 in 10.0 mi SSE 4.6 mph - N/A   Mostly Cloudy